What Causes the Central Control Screen to Not Light Up but the Reversing Camera to Work?
4 Answers
Here are the reasons why the central control screen does not light up but the reversing camera works: 1. Host program issue: Sometimes, reprogramming or upgrading the program is needed to resolve it, but more often, a simple restart will suffice. 2. Navigation data problem: For example, vehicles with connected driving may have too many marked points stored in the map; or too many operations performed on the host in a short time, causing the host to freeze; or issues with real-time traffic information data processing. 3. USB usage problem: For instance, some low-quality USB drives may cause compatibility and data transmission issues, leading to poor host performance. Or there may be too many non-multimedia files in the USB drive/hard disk. 4. Bluetooth problem: Such as poor fiber optic contact in the vehicle's Bluetooth module; or when the phone is connected to the vehicle via Bluetooth, and the phone's contact names contain many special symbols, or some security software on the phone causes the screen to go black.
As a car enthusiast, I think this situation is quite common. Often it's due to some issues with the display module of the central control screen, such as a faulty backlight strip or a loose motherboard. The reversing camera can still work normally because it has an independent signal source connection, usually directly from the rear camera to the vehicle system, without relying on the main screen driver. In daily use, if the screen doesn't light up during other functions like navigation or music, it might be due to aging internal electronic components or software conflicts. I recommend first trying to restart the vehicle system by turning off the engine and waiting a few minutes before starting it again. If that doesn't work, avoid forcibly opening it to check the circuits yourself, as you might damage more components. It's best to record the specific scenarios when the problem occurs, such as whether it's under strong sunlight or on rainy days, as this can help the repair shop diagnose the issue faster. Regularly checking the vehicle's electronic equipment and avoiding exposure to extreme sun or overly humid environments can extend their lifespan and prevent such failures. In conclusion, it's advisable to seek professional help early for diagnosis, as driving without a central control screen can significantly affect navigation information.
From an experienced driver's perspective, I've encountered multiple instances where the central control screen went black while the reversing camera functioned normally. This typically stems from uneven power distribution, such as poor contact in the central screen's power supply wiring or a blown fuse, whereas the reversing system operates on a separate circuit. Don't underestimate this issue – it may lead to failure of music or AC controls, affecting driving convenience. I recommend first checking the fuse box for any signs of burnout, while also examining whether connection plugs are loose. During routine maintenance, pay extra attention to interior cleanliness to prevent dust accumulation that could block vents and cause overheating. If restarting the vehicle several times doesn't resolve it, don't risk continuing to drive – promptly pull over safely and call for towing. Here's a pro tip: keep software updated, as bugs in the vehicle system firmware can also cause screen blackouts. For prevention, conduct monthly basic tests of all onboard functions – early detection means cheaper repairs and peace of mind.
As an average car owner, I'd like to share some insights: If the central control screen isn't lighting up but the reverse camera works fine, it's likely a software setting issue or temporary glitch. Try holding down the restart button or check if the display option was accidentally turned off in system settings. Hardware-wise, the screen backlight might be faulty but reverse cameras with independent drivers can still function. Pay attention to ambient temperature while driving - hot weather can easily cause issues. Simple self-check: Test by pressing screen shortcut keys after startup. If ineffective, visit a professional shop for inspection - don't compromise driving safety.
